Rim.



J. S. JOHNSTON.

RIM.

APPLICATION FILED D0.G.In1I.

1,068,061. .Patel-med. July :ma

J. S. JOHNSTON.

RIM.

APPLIGA'LION FILED DE0,0,1911,

LPLG Patented July 22, 1913.

ATTRNFY mi. JOHNSTON.

RIM.

APPLIGATION FILED DEc.e,1911.

3 SHEETSBHEET 3.

WITNESSES: INVENTOR w/Mf/ JAM/5s gsfof/wrm 5? MJ? LLM? BY m( learnerormoni,

Application led December (5, 1911. Serial No. 664,214.

Specification. o

f Letters Patent. Patented July 1913.

` the following is a specifieation.

lily invention relates,l to a"'r11n and l dov Clare the following to hea full, clearl com oise, and exact description tl'ereo'li, su'l'ieientto enable any one skilled in the art to whieh it appertains to make anduse the saine, reference lieing had to the accompanying rdrawilngs inWhiihv lilze reference characters refer to like parte throughout.

The ohjeet of the invention is to ,provide a rini for Vehicles that willloe of sinrple and efficient construction, and adapted for the quickdetachment or' a pneumatic or other tire carried hy said rim. A

The rino is of the'ordir'iry olencher type and may be constructed nl asingle piece ol1 metal' having its free en detaehablj/.eonnected by adove-tail joint. rEhe endportions beinga preferably enten a bevel Where-4by to more readily center the contacting ende when naine areasaen'ihled. 'l`he means for eonneeting;1 the deiaehahle ende avoidsanj7 unevenneee to either te opper or lower surface oii' the hai-seportion ol the riin. 'lhe under surface oi' the heee portion ol' the.rim being;r unbroken, the saine may he mounted upon theiielly withoutcutting any recessestherein. This feature oi the erenness of surface ofthe hase of the rim loeing` of especial advantage in View of the tactthat any cutting of the 'telly to h'ouse projections trono a rim tendeto weahen said telly. Said rino is also provided with means whereby theend portions may easily yield, so as to he disconnected.

Other features will he diaelosed hy referring tothe drawings iu which: j

Figure l a eide elevation of 'the rim showing' saine mounted upon afellyglipi. 2 is a perspective View ola the rirn showingn the endsdetached; Fig'. il an enlarged fragmentary View o'ii the riin showingone ot ,the tree ende; llig. 4, is an. enlarged traag mentar-y riew ofthe rini'showing1 (he corre- [pending` end to that Shown in Fig. 3; Fig.5 yis an enlarged fragmentary' View of the" rim` showing a central cireuinterentiil seetion; Fig. 6 is an interniediately enlargedfragmentary portion of the rim showing a plan Viewy looking upon theinner surface thereof Fig. l is an interinediately enlargedfiaignientary portion showing a -plan View, looking upon" the innersurface of the rim slightly niodiliedg. ll`ig. S an yenlarged'fragmentary portion in elevation .showing the endel detached; 'Fig'. 9is an enlarged jlraglnentary portion olf the rim in elevation, showingsaid riin under strain and also an other View of the modificationillustrated in Fig'. 7; Fig. lO is an intermediate enlarged. fragmentaryportion of the riin showing a plan 'View lookingl upon the inner surfaceas nnnlilied; lfig;A ll is an enlarged fraging; a modification; Fig. l2is an enlarged li'ragnientary View .of the riin, showingl a certainmodification n'iihrespeet to the inanneroit cutting,` the ends; Figi?)is an eiilarged ragnnnitary View oi. the rini shoviing the endcorresponding` to that shown in Fig. l2; Fig. lllis an enlargedragmentarv View of the riin, allowing a j'iorspeetive vieiv partially insection. n"

Relier-ring more partieularlj7 to the drawings, the hase portion ot therirn proper is represented by il and is provided with the ordinaryeleneher flanges 2-l daid flanges 2---2 are splitat 3 j n-elerahly on ahevel whereby the adjaeent end portions niajT lie more readily andemirenieutly united when ol the hase portion l olE -the rim is formedwith the hase portion l or it desirable may eonipriae a separate piecesecured in a rigid manner to said hase portion il olE said rini. rlheprojection 5 is formed with its lateral 'Sides sj'nfeading in oppositedireetiona, so as to forni a dore-tailed joint with the eorrespondinirrecess: T in the other end 8 o'li run l. lQnd- 'of hase portion l of theriln has formed therein, adjacent either eide' E) and l() o1 projection5, triangular shaped wedges :li-111, adapted to lit into rome sponrliiur'retrasos l2--l2 in end n ot the linee portion l of the rim. Likewise,the extreiine outer end of jn'ojee'tion 5 is formed jvith a triangularshaped wedge T3, adapted to lit orbe housed in the eerresj'iondingrecess .'lfl in end ci ot hase portion l. Said wedgeishaped projections1l, and 153 and the (3m-responding recesses 1Q and lil are adapted forConveniently eentering'the ends t and 8,-When the riln is assembled. Ashort distaneelpto the vright of the location, wherethe rim is split,flanges 2-2 are .l'nentary view in elevation of the riin, showthe endsare aesenihlrd. One o'lithe ende Ll;

with a jjirojeetion 5 which may he integral Ill-3 leline with respect tobase 1 than that eut. as at 15J-13. Cuts 15-15 extend clear throughflanges 2--2 and terminate insh with the upper surface of the baseportion 1. Similarly, at substantially one-third the distance along therim from cuts 1515 in flanges 2*-2, are cuts '1G-*16. in all respectslike cuts 1.3-4.3. The function ot cuts 15-15 and 1li-m16 is to permit agive or yield to base portion 1 of the rim, so that end 4 may be easilypushed downward free from its housing in end S, when it is founddesirable to remove the tire from oli' the rim. The freeing et' end itfrom end S will permit the circumference of the rim to be contractv ed,because of the overlapping of the ends et and S in thismentioned'disposition thereof. Cuts 15-15 and 1(5-16 in llanges 2 2 havebeen found very effective for permitting thel base portion 1 to yieldsulliciently for the detachment of end portions l and 8. However, thereis shown in Figs. 'T and 9, a modi-v ication ot' the manner oitl cuttingthe rim to obtain this yield. rl`he modification embodies transversecuts 17-17 extending clear through flanges 2-2 and base portion 1. Theportion of the rim thus cut is held together by plates 18, brazed,welded or otherwise rigidly secured to the adjacent portions of the base1 of the rim, whereby yto permit of the requisite yield to the endmembers'et and 8 for the purpose of disconnecting same, when the tireis' to be removed.

In Figs. 8, 12, 13 and 14, there is shown a modilication ot' the mannerof splitting the base portion 1 of the rim. Said modification comprisesa projection Lt0 having a portion 41 dovetailed into and rigidly securedby welding or otherwise to the end 41 of base l. The outer end ofprojection 40 terminates with a straight or perpendicular edge 42. Saidprojection 4Q is adapted to be housed in a corresponding recess 43 inend 8'ot` base l of the rim. The portion of base 1 of the rim, adjacentthe projection 40 is cut on an incline rearward, forming an angle 44with the incline of flanges 2-2, which are cut on bevel 3, as in theformer construction. The'augle 44 thus formed by the base 1 and flanges2--2 is adapted to lit into a corresponding rentrant angle in end 8.

In Fig. 1l base portion 1 ot the rim is shown split on a bevel asillustrated in Figs. 8, 12 and 13, and the flanges 2 2- are split on abevel 50, which has a greater 1nshown in said Figs. 8, 12 and 13. Theangle here formed is denoted 51. The portion of flanges 2 2 adjacent endS have each rigidly secured thereto a stud 52 corresponding in thicknessto that of a iiange 2, and adapted to have one-halt of its surfaceprojecting from said portion of said fiange, whereby to form a lockingmeans for tianges 2 2 adjacent endet.

The locking mechanism for assembling the end members 1 and 8 heretoforedescribed is simple and avoids any projections, whereby to inconveniencethe mounting of the rim upon the telly of the wheel. The bevel offianges 2-2 on endV 4, as shown at 23 and at 50 is adapted to allow saidend L1 to be lowered from its housing position in' ing recess in theedge of said mortise recess,

whereby said ends may he centered when be` ing united, and said flangesadjacent said dovetailed projection cut on a. bevel, whereby said endsmay be conveniently united.

2. In a rim having flanges, an end having a dovetailed projectionfanother end having a mortise recess, adapted to house said dovctailedprojection, whereby said ends may be detachably united, a wedge shapedprojection formed on the outer edge of said dovetailed projection and onthe edge of the base portion of the rim adjacent said dovetailedprojectionfa corresponding recess formed in the edge of said mortiserecess, and in the base portion of the rim adjacent said recess, wherebyto receive the corresponding wedge shaped projections to center the endswhen uniting same, and means for permitting said end portions to yield,whereby same may be easily detached.

Signed at Utica, in the county of Oneida, and State of New York, this1st day of December, 1911.

J AMES S. JOHNSTON. Witnesses:

DAVID B. Lista-3, Sultan. SLoAN.

